/**
 * Copyright (C) 2010 Cloudfarming <info@cloudfarming.nl>
 *
 * Licensed under the Eclipse Public License - v 1.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.eclipse.org/legal/epl-v10.html
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package nl.cloudfarming.client.util;

import java.io.File;
import java.io.FileFilter;

/**
 *
 * @author Gerben Feenstra
 */
public class FileUtil {
    
    /**
     * Completely remove a directory and its content.
     * 
     * TODO: EXCEPTION HANDLING?
     * 
     * @param dir Directory to completely remove
     */
    public static void removeTree(File dir){
        assert(dir != null);
        assert(dir.exists());
        
        // Find subdirs in specified dir
        File[] subdirs = dir.listFiles(new FileFilter() {

            @Override
            public boolean accept(File f) {
                if (f.isDirectory()) {
                    return true;
                }
                return false;
            }
        });
        
        // Recursive call to remove subdir and content
        for(File subdir : subdirs){
            removeTree(subdir);
            subdir.delete();
        }
           
        // Find files in specified dir
        File[] files = dir.listFiles(new FileFilter() {

            @Override
            public boolean accept(File f) {
                if (f.isFile()) {
                    return true;
                }
                return false;
            }
        });
           
        // Remove files from dir
        for(File f : files){
            f.delete();
        }
        
        // Remove the directory itself
        dir.delete();       
    }
        
}
